/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlets;

import calculator.CrowflightCalculator;
import calculator.DistanceTableCalculator;
import calculator.TypeCalculator;
import calculator.ZeroCalculator;
import dao.CityDAOImpl;
import dao.DAOFactory;
import hibernate.entityes.City;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.hibernate.Session;
import dao.*;
import java.util.LinkedList;

/**
 *
 * @author eleven
 */
public class InitServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        HttpSession session = request.getSession();
        CityDAOImpl daoCity = DAOFactory.getHibernateDAOFactory().getCityDAOImpl();
        List<City> cities = daoCity.getAllCities();
        session.setAttribute("cities", cities);
        List<TypeCalculator> typescalc = new LinkedList<TypeCalculator>();
        typescalc.add(new CrowflightCalculator().getType());
        typescalc.add(new DistanceTableCalculator().getType());
        typescalc.add(new ZeroCalculator().getType());
        typescalc.add(new TypeCalculator("All Types"));
        session.setAttribute("typescalc", typescalc);
        response.sendRedirect("calculator.jsp");
    }
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">

    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
